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Finding the Third Proportional to 630.94 and 957.80

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Solution

The third proportional to 630.94 and 957.80 is: 1,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.94 : 957.80 = 957.80 : x
  2. Step 2: Convert to fraction form
    630.94/957.80 = 957.80/x
  3. Step 3: Cross multiply
    630.94x = 957.80 × 957.80
  4. Step 4: Simplify right side
    630.94x = 917,374.85
  5. Step 5: Solve for x
    x = 917,374.85/630.94
  6. Step 6: Final answer
    x = 1,453.99

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.